Inking mechanism for platen presses



Nov. 9 1926.

' S. H. PLUM, 2D., ET AL INKING MECHANISM FOR 'PLATEN PRESSES Filed March 4. 1926 3 She ets -Sheet- 1 I m9 NTORS .JZmM .JZ/V? z @w im Nov. 9 Q1926. 1,606,041

- s. H. PLUM, 20., ETAL.

INKING MECHANISM FOR PLATEN PRESSES Filed March 4, 1926 3 Sheets-Sheet 2 Nov. 9 1926.

S. H. PlLUM, 2D., ET AL INKING MECHi'i ISM FOR PLATEN PRESSES Filed March 4 legs 5 Sheets-Sheet 5 Patented Nov. 9, i925.

maria more PATENT orri.

S. HAINES PLUM, 521), OF MADISON, AND AMOS ACKLEY, 0F CAMDEN, NEW JERSEY, ASSIGNORS TO AMERICAN TYPE FOUNDERS COME-AFT, A CORPORATION OF NEW JERSEY.

LINKING MECHANISM Application filed March 4, 192-6.

This invention relates to improvements in inking mechanisms for platen presses and has particular reference to an inking mech anism adapted to be mounted on a Gordon press of the well known Chandler 8: Price type.

The object of the invention is to provide an inking mechanism or attachment including a relatively stationary curved inking plate whereby to obtain a better ink distribution and whereby to provide for two color work. The invention will be more fully understood from the accompanying drawings read in connection. with the following specification. In the drawings Figure 1 is a side view of a Chandler & Price Gordon press showing the press in closed or printing position and with parts removed and parts broken away.

Figure 2 is a similar view showing the form member and inking mechanism in open position. I

Figure 3 is a View looking in the direction of arrow 3 in Figure 1 with details omitted and parts broken away.

Referring to the drawings, the press is identified by the stationary frame work 1 having a driving shaft 2 and which supports the rocking platen 3. 4 is the form member frames pivoted to the fixed frame in the usual manner, not shown, and which supports the form 5. .The form member is operated in the usual manner by means of the connecting rod 6 pivoted to a shaft 7 on the form member, while the other end of the connecting rod 6 is pivoted at 8 to an operating crank 9.

The numeral 10 denotes the usual oscillating roller supports which carry the form rollers 11. i

All of the foregoing elements are of the usualand well known construction and need no further description.

In place of the. usual inkcarrying circu' lating disk well known in the art in this form of printing presses, I provide an ink plate 12 of curved contour as shown in Figures 1 and 2 and which is rectangular as shown in Figure 3. This plate is curved in continuation of the upwardly extending curved track portions 13 of the form member frames. In this particular instance these track portions are cut down somewhat FOR PLATEN PBESSES.

Serial No. 92,215.

so as to obtain a curvature best suited for the. purpose.

The. ink plate 12 is carried by two up standing arms 14-, 14 one on each side and connected by a bridge web 15. The arms 14; are bolted to the form frames 4 by bolts 16, so. that the inking plate is inrelative fixed position with respect to the form but moves therewith as the form member moves back and forth with respect to the platen. At the upper end of the ink plate 12, the usual ink fountain 17 is supported by a bracket 18. 19 is the fountain roller operated from the support 10 by means of the link 20, ratchet arm 21, pawl 22 and ratchet 23 secured to the fountain roller shaft.

The numeral 25 denotes the 'usual distributing ink rollers which may be of the same type as now used on Gordon presses, one of them marked 26 in Figure 3, may be a vibrated roller. The distributing rollers are mounted in distributing roller arms 27, 27, one on each side of the press. The lower ends 28 of the arms 27 are pivotally mounted on the shaft 7, which connects the upper ends of the form frames 1 as usual. The arms 27 are connected by a brace 29 to which a link 30 is pivoted at 31. The lower end of the link30 is pivoted at 32 to the .fixed press frame 1. From this it will be understood that the two arms 27 move together to carry the distributing rollers over the surface of the curved ink plate 12.

The numeral 35 denotes a ductor roller which operatesbetween the fountain roller and the distributing roller 1n the usual manner. In this case the ductor roller is operated by means of an arm 36 pivoted at 37 'on one of the arms 27. The arm 36 has an extension 38 which is held against an adjustable abutment 39 carried on the arm 27. A spring 40 tends to keep the extension 38 against the abutment 39.

In the closed position as in Figure 1 it will be seen that all the rollers have moved upward on the ink plate while the ductor roller has been moved over into contact with the fountain roller due to the pressure of the spring 40. In this backward, or leftward, movement of the rollers the distributing rollers move around the shaft 7 while the form rollers are operated as usual by means of the link 41 pivoted to the sup ports, 10 and the frame of the press at 4-2.

When the press moves into open position as in Figure 2 the form rollers pass downward over and ink the form, while the distributing rollers move forward over the ink plate to distribute the ink thereon. The ductor roller is moved away from the ink fountain through the instrumentali-ti'esof the abutment 89 which engages the eXtension 38 of the arm 36 against the tension of the spring 41. The link 30 regulates or limits the swing of the distributing roller arms 27 as shown.

From the foregoing it will be seen that the movement of the form rollers is of praetically the same length as the movement over the usual cylindrical ink plate, but that the. distributing rollers move over the greater surface of the curved ink plate thus providing thorough distribution of the ink there on, while the ductor roller, of course, operates in the usual manner.

It has heretofore been proposed to use a curved ink plate operated to swing on the shaft 7. This, however, has the disadvantage that it causes too great a strain on the moving parts of the press due to the power necessary to swing the heavy ink plate. In the present instance the ink plate is of about the same weight as the usual cylindrical ink plate with its ope *ating part. and, therefore, this construction does not place any greater strain on the press mechanism. In practice wehave found an inking mechanism as herein disclosed to provide a better and more even distribution of ink on the ink plate, thus accomplishing the object of the invention without requiring any complicated mechanism. It will also be obvious that this mechanism provides for color work in that two or more; colors may be distributed on the ink plate and then transferred to the form, which is not the case where a rotating cylindrical disk is used.

While we, have shown our invention in its preferred form,.nevertheless it will be understood that we do not wish to be limited to the exact disclosure otherwise than as is required within the scope of the appended claims.

We claim 1. A bed and platen job printing press comprising a press frame and a pair-of rocking bed frames, a shaft extending transversely of said rocking bed, a materially curved inkplate bolted to: the said rocking bed frames, a pair of arms pivoted on the said transverse shaft between the said rocking bed frames and extending upwardly therefrom, one on each side of the, said ink plate, distributing rollers mounted in the upper free ends of said arms and, adapted to distribute the ink on the said plate, a link pivoted ,to said press frame and the said arms for operating the. latter to cause the distributing rollers to move in contact with said plate for the, entire length thereof, an ink fountain secured to the said ink plate, a ductor roller for applying ink from the ink fountain to the one end of the plate and means for operating the duct-or roller from the said pair of arms.

2. A bed and platen job printing press comprising a press frame and a rocking bet, a rectangular materially cu'ved ink plate supported in fixed relation on the said bed, a shaft extending transversely of the latter, a pair of arms pivoted on the said transverse shaft, ink distributing rollers carried by said arms and adapted to distribute ink on the said plate, a link pivoted to the press frame and to the said armsv for operating the lat.- ter, an ink fountain carried by said ink plate, a ductor roller for applying ink from the fountain to the ink plate, anv arm for operating the said ductor roller, said arm being pivoted on one of the. distributing roller arms aforesaid, an adjustable abutment on the said; one distributing roller arm, an extension on said ductor roller operating arm and a spring for urging said extension against the said adjustable abutment for the purpose set forth.

S. HAINES PLUM, 2D. AMOS- ACKLEY. 

